Shoe midsole



FIG. 1 is a first rear perspective view of a shoe midsole showing our new design;

FIG. 2 is a rear view thereof; and,

FIG. 3 is a second rear perspective view thereof.

The broken lines showing the remainder of the shoe are for environmental purposes only and form no part of the claimed design. 

The ornamental design for a shoe midsole, as shown and described. 